KR-20260062662-A - DISPLAY DEVICE

KR20260062662AKR 20260062662 AKR20260062662 AKR 20260062662AKR-20260062662-A

Abstract

The embodiments of the present specification relate to a display device, and more specifically, can provide a display device capable of improving brightness deviation in an optical region and improving transmittance within an optical region by connecting a first signal line, which is electrically connected to a voltage line in an area adjacent to an optical region, to a second signal line.

Inventors

김태휘

Assignees

엘지디스플레이 주식회사

Dates

Publication Date: 20260507
Application Date: 20241029

Claims (20)

A display panel comprising an optical region having a plurality of transmission regions and a plurality of first light-emitting regions, and a general region disposed at the outer edge of the optical region and having a plurality of second light-emitting regions; and It includes an optical electronic device positioned at the bottom of the above-mentioned display panel and overlapping with the above-mentioned optical region, and The above general area is, A plurality of first signal wires extending in a first direction; and A display device comprising at least one second signal wire that extends in a second direction intersecting the first direction and electrically connects each of at least two first signal wires, which are electrically connected to the same voltage wire among the plurality of first signal wires, to an area adjacent to the optical area.
In paragraph 1, A display device in which each of the plurality of first signal wires and at least one second signal wire is a data dummy wire.
In paragraph 1, The above at least two first signal wires are, A display device electrically connected to at least one second signal wiring in at least one of a first connection area spaced apart by a preset distance from a first side of the optical area, and a second connection area spaced apart by the preset distance from a second side of the optical area.
In paragraph 1, The above voltage wiring is a display device comprising at least one wiring among an initialization voltage wiring, a reset voltage wiring, and a bias voltage wiring.
In paragraph 1, A display device in which at least one first signal wire among the plurality of first signal wires extending in the direction of the optical region is disconnected at the edge portion of the optical region.
In paragraph 1, A display device comprising at least two first signal wires, each including a plurality of first-1 signal wires electrically connected to a first voltage wire, and a plurality of first-2 signal wires electrically connected to a second voltage wire.
In paragraph 6, A display device comprising at least one second signal wiring, a second-1 signal wiring that electrically connects each of the plurality of first-1 signal wirings, and a second-2 signal wiring that electrically connects each of the plurality of first-2 signal wirings.
In paragraph 6, A display device in which the plurality of first-1 signal wires and the plurality of first-2 signal wires are arranged alternately in the second direction in at least a portion of the display panel.
In paragraph 6, A first auxiliary connection wire that electrically connects an adjacent pair of signal wires among the plurality of first-1 signal wires at the edge portion of the optical region; and A display device further comprising a second auxiliary connection wire that electrically connects an adjacent pair of signal wires among the plurality of first and second signal wires at the edge portion of the optical region.
In paragraph 1, A display device that jumps and connects at least one first voltage wiring among the above voltage wirings in at least one overlapping area on the same plane as at least one second voltage wiring among the above voltage wirings.
In Paragraph 10, A display device in which the at least one first voltage wiring has a wiring resistance lower than the at least one second voltage wiring.
In paragraph 1, The plurality of first signal wires and the at least one second signal wire are formed of different materials in different planes, and A display device further comprising a connection pattern that electrically connects each of the plurality of first signal wires to the at least one second signal wire.
In paragraph 1, Substrate; A transistor layer disposed on the substrate and comprising at least one transistor and a passivation layer disposed on the at least one transistor; and It further includes a plurality of planarization layers disposed on the transistor layer, and A display device in which the plurality of first signal wires are disposed on the passivation layer, and the at least one second signal wire is disposed on any one of the plurality of flattening layers.
In Paragraph 13, A display device further comprising a connection pattern disposed in each of the contact holes formed in the area where each of the plurality of first signal wires and the at least one second signal wire overlap, and electrically connecting each of the plurality of first signal wires to the at least one second signal wire.
In Paragraph 14, The above connection pattern is a display device formed of the same material as the at least one second signal wiring.
A substrate comprising a general area and an optical area that overlaps with an optical electronic device positioned at the bottom of a display panel; A transistor layer disposed on the substrate and comprising at least one transistor and a passivation layer disposed on the at least one transistor; A first signal wiring disposed on the passivation layer in the above general area and electrically connected to the voltage wiring; A plurality of planarization layers disposed on the transistor layer and the first signal wiring; A second signal wiring disposed on any one of the plurality of planarization layers in the general area and electrically connected to the first signal wiring in an area adjacent to the optical area; and A display device comprising a light-emitting element layer disposed on the plurality of planarization layers and including a plurality of light-emitting elements corresponding to each of the optical region and the general region.
In Paragraph 16, The plurality of flattening layers comprises a first flattening layer disposed on the passivation layer and the first signal wiring, and a second flattening layer disposed on the first flattening layer, and the second signal wiring is disposed on the second flattening layer.
In Paragraph 17, A display device further comprising a connection pattern disposed in a contact hole formed in the first flattening layer, electrically connecting the first signal wiring and the second signal wiring.
In Paragraph 16, The above substrate is a display device comprising a first substrate, an intermediate insulating film disposed on the first substrate, and a second substrate disposed on the intermediate insulating film.
In Paragraph 16, The above optical region includes a transmission region, and a display device that overlaps with a light-emitting layer within the light-emitting element in the transmission region.

Description

Display Device The embodiments of this specification relate to display devices. With technological advancements, display devices can provide not only image display functions but also shooting functions and various sensing functions. To this end, the display device must be equipped with optical electronic devices (also referred to as light receiving devices or sensors), such as cameras and sensing sensors. Since optoelectronic devices must receive light from the front of the display device, they must be installed in a location advantageous for light reception. Consequently, conventionally, cameras (camera lenses) and detection sensors had to be installed so that they were exposed on the front of the display device. As a result, optoelectronic devices are being placed in areas where the display panel bezel is widened or where notches or physical holes are formed in the display area. In other words, as optical electronic devices such as cameras and detection sensors that receive light from the front and perform specific functions are provided in the display device, the bezel on the front of the display device may become larger or restrictions may arise on the front design of the display device. Furthermore, when the display device is equipped with optical electronic devices, unexpected degradation of image quality may occur due to the structure in which the optical electronic devices are provided. FIGS. 1a to 1e are drawings for illustrating a display device according to embodiments of the present specification. FIG. 2 is a drawing for explaining the system configuration of a display device according to embodiments of the present specification. FIG. 3 is a drawing for illustrating an example of a subpixel according to embodiments of the present specification. FIG. 4 is a drawing for illustrating another example of a subpixel according to the embodiments of the present specification. FIG. 5 is a diagram illustrating the arrangement of subpixels in a general area and an optical area according to embodiments of the present specification. FIG. 6 is a drawing for illustrating an example of a connection structure of signal lines in a display panel according to embodiments of the present specification. FIG. 7 is a drawing for explaining another example of a connection structure of signal lines in a display panel according to embodiments of the present specification. FIGS. 8 and 9 are drawings for further explaining the connection structure of signal lines in a display panel according to embodiments of the present specification. FIGS. 10 and FIGS. 11 are drawings for illustrating embodiments of a display device according to the embodiments of the present specification. Hereinafter, some embodiments of the present specification will be described in detail with reference to the exemplary drawings. In assigning reference numerals to the components of each drawing, the same components may have the same reference numeral as much as possible, even if they are shown in different drawings. Furthermore, in describing the present specification, if it is determined that a detailed description of related known components or functions may obscure the essence of the present specification, such detailed description may be omitted. Where terms such as "comprising," "having," or "consisting of" are used in the present specification, other parts may be added unless "only" is used. Where a component is expressed in the singular, it may include a plural unless there is a special explicit description otherwise. Additionally, terms such as first, second, A, B, (a), (b), etc., may be used to describe the components of this specification. These terms are used merely to distinguish the components from other components, and the nature, order, sequence, or number of the components are not limited by such terms. In describing the positional relationship of components, where it is stated that two or more components are "connected," "combined," or "joined," it should be understood that while the two or more components may be directly "connected," "combined," or "joined," they may also be "connected," "combined," or "joined" with other components "intervened." Here, the other components may be included in one or more of the two or more components that are "connected," "combined," or "joined" with one another. In describing the temporal flow relationship regarding components, methods of operation, or methods of production, for example, when the temporal or sequential relationship is described using "after," "following," "next," or "before," it may include cases where the relationship is not continuous unless "immediately" or "directly" is used. Meanwhile, where numerical values or corresponding information regarding a component (e.g., levels, etc.) are mentioned, even without separate explicit notation, the numerical values or corresponding information may be interpreted as including a range of error that may occur due to various factors (e.g., proc